And a solid electrolyte secondary cell

Object of the present invention is to provide a dendrite can be prevented from penetrating the electrode component and a high ion conductive solid electrolyte, and a secondary battery using it. Side surface of the pores of the solid electrolyte of the present invention, a sheet, a sintered body formed of an oxide, layered over 90% of the density of the sintered compact at least one surface portion and a dense portion is formed continuously in the solid electrolyte the porous portion was 50% or more configuration. The secondary battery of the present invention having a solid electrolyte sandwiched between the positive electrode and a solid electrolyte disposed at opposite positions and the negative electrode. Further, the secondary battery of the present invention having a separator made of a solid electrolyte, and a separator interposed therebetween in a position opposite the positive electrode and the negative electrode arranged, and a separator disposed therebetween filled with a positive electrode disposed on the positive side and the negative electrode at least one side of the electrolyte in the negative side.